A coupled neural oscillator model for recruitment and annihilation of the degrees of freedom of oscillatory movements

Abstract

We have constructed a neural network model for recruitment and annihilation of the degrees of freedom of the oscillatory activities which has been observed in experiments of human finger movements. The model is composed of two asymmetrically coupled oscillators which are a stiff oscillation system. The change of coupling strength is assumed to make the frequency of the oscillation change and invoke the behavior. By the change of the coupling coefficient between units inside each oscillator, the oscillatory mode in the network transits from the horizontal mode to the synchronized mode, and then to the vertical mode as the frequency becomes higher.